EP0661474A1 - Shaft mounting - Google Patents

Shaft mounting Download PDF

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Publication number
EP0661474A1
EP0661474A1 EP94115077A EP94115077A EP0661474A1 EP 0661474 A1 EP0661474 A1 EP 0661474A1 EP 94115077 A EP94115077 A EP 94115077A EP 94115077 A EP94115077 A EP 94115077A EP 0661474 A1 EP0661474 A1 EP 0661474A1
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EP
European Patent Office
Prior art keywords
shaft
area
bore
areas
toothed
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EP94115077A
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German (de)
French (fr)
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EP0661474B1 (en
Inventor
Manfred Wittenstein
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Alpha Getriebebau GmbH
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Alpha Getriebebau GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B4/00—Shrinkage connections, e.g. assembled with the parts at different temperature; Force fits; Non-releasable friction-grip fastenings
    • F16B4/004—Press fits, force fits, interference fits, i.e. fits without heat or chemical treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/064—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable
    • F16D1/072—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving plastic deformation

Definitions

  • the invention relates to a shaft attachment according to the preamble of the claim.
  • the shaft attachment it can also be a shaft attachment.
  • Such a shaft or shaft attachment is known from DE 41 34 552 A, for example with reference to the attachment of a gear pinion.
  • the type of such a shaft-hub connection is also described earlier in DE-OS 23 47 372, DE-OS 23 43 289 and US-PS 4,236,495.
  • gear pinions in particular those which are used in backlash-free planetary gears, an exact central fastening of the pinion shaft is absolutely necessary.
  • the invention is concerned with the problem of increasing the accuracy of the central mounting of the shaft to be fastened, in particular of a pinion shaft, within the mounting part.
  • the invention is based on the idea that the shaft cuts the toothed shaft region B into the corresponding bore section B. of the receiving part in front of and behind this section in the center of the hole.
  • the bore of the receiving part and the fastening area of the shaft are each in three sections A , B , C or to divide A, B, C.
  • the three areas of the bore must each have different diameters that decrease in the joining direction. In the case of the shaft, only the areas A, B on the one hand and C on the other hand must have different diameters from one another. The smaller diameter applies to area C. If the diameters also differ from areas A, B, area B has the smaller diameter than A.
  • the embodiment with the same diameter shaft areas A, B allows a shorter overall length of the connection compared to the alternative with three different diameter areas. This will be discussed in more detail below in the context of a specific comparison of the overall lengths of the two embodiments.
  • the parts to be connected can be joined while simultaneously cutting the shaft area B into the associated bore area B 'at a temperature of the shaft area in question, which is below the temperature of the receiving part. This results in an additional interference fit between the connected interlocking parts after temperature compensation.
  • a pinion 1 is provided with a shaft 2.
  • the pinion 1 With the shaft 2, the pinion 1 is inserted in the bore 3 of a receiving part 4 with a precise fit.
  • the shaft 2 is divided lengthwise into three sections, namely from its free end into a first pass area C, a subsequent toothed area B and a pass area A directly adjoining the pinion 1.
  • the bore 3 of the receiving part is in areas A , B , C , which functionally correspond to the shaft areas A, B, C, the diameter of which decreases as viewed in alphabetical order of these areas.
  • the shaft area B is cut into the associated bore area B 'with simultaneous shaft centering in areas A and C already given before the start of the cut.
  • the length of the area C must be greater by this dimension z than the length of the bore area B. his. Furthermore, B must be less than A his.
  • the areas A and B of the shaft 2 are of the same diameter.
  • this design enables a shorter overall length of the connection to be achieved. Furthermore, joint machining of the same outer diameters of areas A and B is possible.
  • the overall length of the receiving bore can be reduced by 4 mm in the present specific case, ie by 21%.
  • the overall length reduction to be achieved in each case depends on the initial dimensions for B and z and therefore differs from the aforementioned Percentage. However, there is always a shortening.

Abstract

In the case of a shaft mounting where the shaft (1) is press-fitted positively into a hole (3) in a receiving part (4) by means of an area (B) provided on the said shaft and toothed or, in particular, knurled over part of its length, the intention is to increase centring accuracy. For this purpose, cylindrical centring sections (A,C) are provided in front of and behind the toothed shaft area (B) to allow an acurate fit within the receiving hole. The receiving hole is divided into three sections (A',B',C') of different diameters. At least two sections of different diameters must exist along the length of the shaft part to be fixed. This makes it possible to carry out the cutting of the toothed shaft area (B) with the shaft (1) centred within the receiving hole (3) in front of and behind the toothed shaft area (B), the centring being present at the latest simultaneously with the cutting of the toothed shaft area (B). <IMAGE>

Description

Die Erfindung betrifft eine Wellen-Befestigung nach dem Oberbegriff des Patentanspruchs. Anstelle der Wellen-Befestigung kann es sich auch um eine Schaftbesfestigung handeln.The invention relates to a shaft attachment according to the preamble of the claim. Instead of the shaft attachment, it can also be a shaft attachment.

Eine solche Wellen- oder Schaftbefestigung ist beispielsweise mit Bezug auf die Befestigung eines Getriebe-Ritzels aus DE 41 34 552 A bekannt. Die Art einer solchen Wellen-Naben-Verbindung ist auch bereits früher schon in DE-OS 23 47 372, DE-OS 23 43 289 und US-PS 4,236,495 beschrieben. Bei Getriebe-Ritzeln und zwar insbesondere bei solchen, die in spielfreien Planetengetrieben eingesetzt sind, ist eine exakte zentrische Befestigung der Ritzelschaftes zwingend notwendig.Such a shaft or shaft attachment is known from DE 41 34 552 A, for example with reference to the attachment of a gear pinion. The type of such a shaft-hub connection is also described earlier in DE-OS 23 47 372, DE-OS 23 43 289 and US-PS 4,236,495. In the case of gear pinions, in particular those which are used in backlash-free planetary gears, an exact central fastening of the pinion shaft is absolutely necessary.

Von dem vorgenannten bekannten Stand der Technik ausgehend beschäftigt sich die Erfindung mit dem Problem, die Genauigkeit der zentrischen Aufnahme der zu befestigenden Welle, insbesondere eines Ritzelschaftes, innerhalb des Aufnahmeteiles noch weiter zu erhöhen.Starting from the aforementioned known prior art, the invention is concerned with the problem of increasing the accuracy of the central mounting of the shaft to be fastened, in particular of a pinion shaft, within the mounting part.

Gelöst wird dieses Problem durch eine Ausführung der gattungsgemäßen Wellen-Befestigung nach den kennzeichnenden Merkmalen des Patentanspruchs.This problem is solved by an embodiment of the generic shaft fastening according to the characterizing features of the patent claim.

Es hat sich gezeigt, daß insbesondere bei Ritzel-Befestigungen in spielarmen Planetengetrieben erst eine solche Verbindung die auf diesem Gebiet gestellten Genauigkeitsanforderungen funktionssicher erfüllt.It has been shown that, especially in the case of pinion attachments in low-play planetary gears, only one Connection meets the accuracy requirements set in this area in a functionally reliable manner.

Die Erfindung beruht auf dem Gedanken, die Welle beim Einschneiden des gezahnten Wellenbereiches B in den entsprechenden Bohrungsabschnitt B

Figure imgb0001
des Aufnahmeteiles vor und hinter diesem Abschnitt zentrisch in der Bohrung zu führen. Um dies zu erreichen, sind die Bohrung des Aufnahmeteiles und der Befestigungsbereich der Welle in jeweils drei Abschnitte A
Figure imgb0001
,B
Figure imgb0001
,C
Figure imgb0001
bzw. A,B,C aufzuteilen. Dabei müssen die drei Bereiche der Bohrung jeweils unterschiedliche in Fügerichtung abnehmende Durchmesser aufweisen. Bei der Welle müssen lediglich die Bereiche A,B einerseits und C andererseits voneinander unterschiedliche Durchmesser besitzen. Der kleinere Durchmesser entfällt dabei auf den Bereich C. Weichen auch die Durchmesser von den Bereichen A,B voneinander ab, so weist der Bereich B den gegenüber A kleineren Durchmesser auf.The invention is based on the idea that the shaft cuts the toothed shaft region B into the corresponding bore section B.
Figure imgb0001
of the receiving part in front of and behind this section in the center of the hole. To achieve this, the bore of the receiving part and the fastening area of the shaft are each in three sections A
Figure imgb0001
, B
Figure imgb0001
, C
Figure imgb0001
or to divide A, B, C. The three areas of the bore must each have different diameters that decrease in the joining direction. In the case of the shaft, only the areas A, B on the one hand and C on the other hand must have different diameters from one another. The smaller diameter applies to area C. If the diameters also differ from areas A, B, area B has the smaller diameter than A.

Die Ausführungsform mit durchmessergleichen Wellen-Bereichen A,B läßt gegenüber der Alternative mit drei unterschiedlichen Durchmesserbereichen eine kürzere Baulänge der Verbindung zu. Hierauf wird weiter unten im Rahmen eines konkreten Baulängenvergleiches beider Ausführungsformen noch näher eingegangen werden.The embodiment with the same diameter shaft areas A, B allows a shorter overall length of the connection compared to the alternative with three different diameter areas. This will be discussed in more detail below in the context of a specific comparison of the overall lengths of the two embodiments.

Bezüglich eines Wellenbesfestigungsbereiches mit durchmessergleichen Bereichen A,B sei hier daher lediglich auf den grundsätzlichen Unterschied dieser Version gegenüber der alternativen Lösungsvariante mit drei unterschiedlichen Durchmesserbereichen hingewiesen. Dieser besteht darin, daß bei durchmessergleichen Bereichen A,B der gezahnte Bereich B beim Fügen mit zur Zentrierung herangezogen wird. Dies geschieht dadurch, daß die Welle in dem gezahnten Bereich B über ihre Kopfkreisabschnitte solange zentrisch paßgenau in dem Bohrungsbereich A anliegt und geführt wird, bis dieser Bereich B vollständig in den zugehörigen Bohrungsbereich B

Figure imgb0001
eingeschnitten ist. Mit beim Fügen abnehmender Führungslänge des Wellenbereiches B innerhalb des Bohrungsbereiches A
Figure imgb0001
greift mit zunehmender Länge der Wellenbereich A als paßgenaue Zentrierung ein.With regard to a shaft mounting area with areas A, B of the same diameter, it is therefore only necessary to point out the fundamental difference of this version compared to the alternative solution variant with three different diameter areas. This consists in that, in the case of regions A, B of the same diameter, the toothed region B is used for centering when joining. This happens because the shaft in the toothed area B over its tip circle sections as long as it fits and is centered in the bore area A until this area B is completely in the associated bore area B
Figure imgb0001
is incised. With decreasing guide length of the shaft area B within the bore area A when joining
Figure imgb0001
interferes with increasing length of the waveband A as a precise centering.

Bei der erfindungsgemäßen Wellen-Befestigung kann das Fügen der miteinander zu verbindenden Teile unter gleichzeitigem Einschneiden des Wellenbereiches B in den zugehörigen Bohrungsbereich B' bei einer Temperatur des betreffenden Wellenbereiches erfolgen, die unterhalb der Temperatur des Aufnahmeteiles liegt. Dadurch wird nach Temperaturausgleich noch ein zusätzlicher Preßsitz zwischen den verbundenen verzahnt ineinandergreifenden Teilen erreicht.In the shaft fastening according to the invention, the parts to be connected can be joined while simultaneously cutting the shaft area B into the associated bore area B 'at a temperature of the shaft area in question, which is below the temperature of the receiving part. This results in an additional interference fit between the connected interlocking parts after temperature compensation.

Bei Wellen mit unterschiedlichen Durchmesser-Bereichen A,B,C sind erfindungsgemäß folgende Füge-Varianten möglich.

  • (a) Bevor der Wellenbereich B in den Bohrungsbereich B' eingeschnitten wird, ist der Wellenbereich C bereits in dem Bohrungsbereich C' zentriert. Die Zentrierung des Wellenbereiches A in dem Bohrungsbereich A' setzt erst nach Beginn, jedoch noch vor dem Ende des Einschneidevorganges ein. Hierzu müssen die einzelnen Längenbereiche folgendermaßen aufeinander abgestimmt sein:
       C größer als B' und B + C größer als A' + B'
  • (b) Bevor der Wellenbereich B in den Bohrungsbereich B' eingeschnitten wird, ist der Wellenbereich A bereits in dem Bohrungsbereich A' zentriert. Die Zentrierung des Wellenbereiches C in dem Bohrungsbereich C' setzt erst nach Beginn, jedoch noch vor dem Ende des Einschneidevorganges ein. Die hierfür erforderliche Längenbereichsabstimmung lautet:
       C kleiner als B' und B kleiner als A'
  • (c) Vor dem bzw. spätestens bei Beginn des Einschneidens des Wellenbereiches B sind die beiden Wellenbereiche A und C bereits zentriert. Dies ist der Fall, wenn
       B kleiner/gleich A' und C größer/gleich B
    Figure imgb0001

    Bei durchmessergleichen Wellenbereichen A,B sind folgende zwei Füge-Varianten möglich.
  • (a) Der Wellenbereich B zentriert als erstes in dem Bohrungsbereich A. Eine Zentrierung des Wellenbereiches C beginnt erst nach einem Einsetzen des Schneidvorgangs in dem Bohrungsbereich B'. Die Zentrierung des Wellenbereiches A setzt erst nach Beginn des Einschneidens des Wellenbereiches B in den Bohrungsbereich B' ein. Die Bedingung für diese Ausführung lautet
       C kleiner als B'.
  • (b) Das Einschneiden des Wellenbereiches B erfolgt bei gleichzeitiger Zentrierung der Wellenbereiche B und/oder A einerseits und C andererseits. Dies setzt voraus, daß
    C größer als B'.
    Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt.
In the case of shafts with different diameter ranges A, B, C, the following joining variants are possible according to the invention.
  • (a) Before the wave area B is cut into the bore area B ', the wave area C is already centered in the bore area C'. The centering of the shaft area A in the bore area A 'only begins after the beginning, but before the end of the cutting process. To do this, the individual length ranges must be coordinated as follows:
    C greater than B 'and B + C greater than A' + B '
  • (b) Before the wave area B is cut into the bore area B ', the wave area A is already centered in the bore area A'. The centering of the wave range C in the bore area C 'begins only after the beginning, but before the end of the cutting process. The length range coordination required for this is:
    C less than B 'and B less than A'
  • (c) Before or at the latest at the beginning of the incision in the wave area B, the two wave areas A and C are already centered. This is the case if
    B less than or equal to A 'and C greater than or equal to B
    Figure imgb0001

    The following two joining options are possible for shaft areas A, B with the same diameter.
  • (a) The shaft area B first centers in the bore area A. Centering of the shaft area C only begins after the cutting process has started in the bore area B '. The centering of the shaft area A begins only after the beginning of the cutting of the shaft area B into the bore area B '. The condition for this execution is
    C less than B '.
  • (b) The incision of the wave area B takes place with simultaneous centering of the wave areas B and / or A on the one hand and C on the other. This presupposes that
    C greater than B '.
    Embodiments of the invention are shown in the drawing.

Es zeigen

Fig. 1
die Ansicht eines Ritzels mit drei durchmessermäßig unterschiedlichen zur Befestigung dienenden Schaftbereichen,
Fig. 2
einen Schnitt durch die Bohrung eines Aufnahmeteils zur Aufnahme des Ritzelschaftes nach Fig. 1,
Fig. 3
einen Schnitt durch einen teilweise in die Bohrung eines Aufnahmeteiles eingeführten Ritzelschaft,
Fig. 4
einen Schnitt durch einen in die Bohrung eines Aufnahmeteiles vollständig eingefügten Ritzelschaftes,
Fig. 5-8
eine den Fig. 1-4 entsprechende Darstellung einer Ritzelschaftbefestigung, bei der der Ritzelschaft lediglich zwei durchmessermäßig unterschiedliche Schaftbereiche aufweist.
Show it
Fig. 1
the view of a pinion with three different shaft areas serving for fastening,
Fig. 2
2 shows a section through the bore of a receiving part for receiving the pinion shaft according to FIG. 1,
Fig. 3
3 shows a section through a pinion shaft that is partially inserted into the bore of a receiving part,
Fig. 4
3 shows a section through a pinion shaft that is completely inserted into the bore of a receiving part,
Fig. 5-8
a representation corresponding to FIGS. 1-4 of a pinion shaft fastening, in which the pinion shaft only has two shaft areas with different diameters.

Bei den dargestellten Wellen- bzw. Schaftbefestigungen geht es um den Spezialfall einer zentrisch paßgenauen Ritzelschaft-Befestigung bei der Herstellung eines spielfreien Planetengetriebes. Hierfür ist jeweils ein Ritzel 1 mit einem Schaft 2 versehen.The shaft and shaft fastenings shown deal with the special case of a centrically precisely fitting pinion shaft fastening in the manufacture of a backlash-free planetary gear. For this purpose, a pinion 1 is provided with a shaft 2.

Mit dem Schaft 2 ist das Ritzel 1 paßgenau in die Bohrung 3 eines Aufnahmeteiles 4 eingefügt.With the shaft 2, the pinion 1 is inserted in the bore 3 of a receiving part 4 with a precise fit.

Der Schaft 2 ist der Länge nach in drei Teilbereiche aufgeteilt, und zwar von seinem freien Ende aus gesehen in einen ersten Paß-Bereich C, einen darauf folgenden gezahnten Bereich B sowie einen direkt an das Ritzel 1 anschliessenden Paß-Pereich A.The shaft 2 is divided lengthwise into three sections, namely from its free end into a first pass area C, a subsequent toothed area B and a pass area A directly adjoining the pinion 1.

Die Bohrung 3 des Aufnahmeteiles ist in Bereiche A

Figure imgb0001
,B
Figure imgb0001
,C
Figure imgb0001
, die funktionsmäßig den Schaftbereichen A,B,C entsprechen, aufgeteilt, wobei deren Durchmesser in alphabetischer Reihenfolge dieser Bereiche gesehen jeweils abnehmen.The bore 3 of the receiving part is in areas A
Figure imgb0001
, B
Figure imgb0001
, C
Figure imgb0001
, which functionally correspond to the shaft areas A, B, C, the diameter of which decreases as viewed in alphabetical order of these areas.

Während die Bereiche A

Figure imgb0001
,B
Figure imgb0001
,C
Figure imgb0001
der Bohrung 3 jeweils unterschiedliche sich im vorgenannten Sinne verkleinernde Durchmesser haben müssen, gibt es bei der Gestaltung der Schaftbereiche des Ritzels 1 zwei Ausführungsvarianten.While areas A
Figure imgb0001
, B
Figure imgb0001
, C
Figure imgb0001
of the bore 3 must each have different diameters that decrease in the aforementioned sense, there are two design variants in the design of the shaft regions of the pinion 1.

Im folgenden wird zunächst auf die in den Fig. 1-4 gezeigte Ausführungsform eingegangen, bei der sämtliche drei Schaft-Bereiche A,B,C unterschiedliche Durchmesser besitzen. Bei dieser Ausführungsform erfolgt das Einschneiden des Wellenbereiches B in den zugehörigen Bohrungsbereich B' bei gleichzeitiger, bereits vor dem Beginn des Einschneidens gegebener, Wellenzentrierung in den Bereichen A und C.1-4, in which all three shank areas A, B, C have different diameters. In this embodiment, the shaft area B is cut into the associated bore area B 'with simultaneous shaft centering in areas A and C already given before the start of the cut.

Um den gezahnten, speziell gerändelten, Bereich B des Schaftes 2 bei einer zentrierten Führung der Nachbarbereiche A und C in den zugehörigen Bohrungsbereichen A

Figure imgb0001
und C
Figure imgb0001
mit einer vorgebbaren Führungslänge z einschneiden zu können, muß die Länge des Bereiches C um dieses Maß z größer als die Länge des Bohrungsbereiches B
Figure imgb0001
sein. Weiterhin muß B kleiner als A
Figure imgb0001
sein.Around the toothed, specially knurled area B of the shaft 2 with a centered guidance of the neighboring areas A and C in the associated bore areas A
Figure imgb0001
and C
Figure imgb0001
To be able to cut with a predeterminable guide length z, the length of the area C must be greater by this dimension z than the length of the bore area B.
Figure imgb0001
his. Furthermore, B must be less than A
Figure imgb0001
his.

Bei einer konkreten Ausführung ergeben sich bei einer aus Festigkeitsgründen vorgegebenen Breite des gezahnten Verbindungsbereiches B,B

Figure imgb0001
mit B = 4 mm, B'= (4 mm Verzahnungsbreite + s = 1 mm Spannut vor dem Übergang zu dem Bohrungsbereich C') und einer gewünschten Zentrier-Führungslänge von mindestens z = 3 mm in jedem der Wellenbereiche A und C folgende Einzel- und Gesamtlängen:
Figure imgb0019
Daraus ergeben sich als gemeinsame Gesamtlängen für die gestuften Bohrungsbereiche:
Figure imgb0020
und für die gestuften Wellenbereiche:

L1'= A + B + C = 7 + 4 + 8 = 19 mm
Figure imgb0021

Bei dem Ausführungsbeispiel nach den Fig. 5-8 sind die Bereiche A und B des Schaftes 2 durchmessergleich.In a specific embodiment, the toothed connection area B, B is given a width that is predetermined for reasons of strength
Figure imgb0001
with B = 4 mm, B '= (4 mm toothing width + s = 1 mm flute before the transition to the bore area C') and a desired centering guide length of at least z = 3 mm in each of the shaft areas A and C the following individual and overall lengths:
Figure imgb0019
This results in the following total lengths for the stepped bore areas:
Figure imgb0020
and for the stepped wavebands:

L1 '= A + B + C = 7 + 4 + 8 = 19 mm
Figure imgb0021

In the embodiment according to FIGS. 5-8, the areas A and B of the shaft 2 are of the same diameter.

Gegenüber der oben beschriebenen ersten Alternative läßt sich mit dieser Ausführung eine kürzere Gesamtlänge der Verbindung erreichen. Des weiteren ist eine gemeinsame Bearbeitung der gleichen Außendurchmesser der Bereiche A und B möglich.Compared to the first alternative described above, this design enables a shorter overall length of the connection to be achieved. Furthermore, joint machining of the same outer diameters of areas A and B is possible.

Unter den bei der ersten Alternative angesetzten Voraussetzungen, d.h. einer aus Festigkeitsgründen vorgegebenen Verzahnungsbreite B,B

Figure imgb0001
mit B = 4 mm, B'= (4 mm Verzahnungsbreite + s = 1 mm Spannut vor dem Übergang zu dem Bohrungsbereich C') und einer gewünschten Zentrier-Führungslänge von mindestens z = 3 mm in jedem der Wellenbereiche A und B einerseits und C andererseits ergeben sich folgende Bereichsbreiten:
Figure imgb0023
Hieraus ergeben sich als Gesamtlängen für die Bohrung:
Figure imgb0024
und für die Welle

L2'= A + B + C = 3 + 4 + 8 = 15 mm
Figure imgb0025

Verglichen mit der Gesamtlänge L1 aus der ersten alternativen Lösung nach den Fig. 1-4 läßt sich bei der zweiten Alternative nach den Fig. 5-8 eine Baulängenverkürzung der Aufnahmebohrung von im vorliegenden konkreten Fall 4 mm erzielen, d.h. um 21%. Die in anderen Fällen zu erzielende Baulängenverkürzung hängt jeweils von den Ausgangsmaßen für B und z ab und weicht daher jeweils von dem vorgenannten Prozentsatz ab. Eine Verkürzung ergibt sich jedoch in jedem Fall.Under the conditions used in the first alternative, ie a toothing width B, B specified for reasons of strength
Figure imgb0001
with B = 4 mm, B '= (4 mm toothing width + s = 1 mm flute before the transition to the bore area C') and a desired centering guide length of at least z = 3 mm in each of the shaft areas A and B on the one hand and C on the other hand, there are the following areas:
Figure imgb0023
This results in the total lengths for the hole:
Figure imgb0024
and for the wave

L2 '= A + B + C = 3 + 4 + 8 = 15 mm
Figure imgb0025

Compared to the total length L1 from the first alternative solution according to FIGS. 1-4, in the second alternative according to FIGS. 5-8, the overall length of the receiving bore can be reduced by 4 mm in the present specific case, ie by 21%. The overall length reduction to be achieved in each case depends on the initial dimensions for B and z and therefore differs from the aforementioned Percentage. However, there is always a shortening.

Erreicht wird die vorgenannte Baulängenverkürzung dadurch, daß der gezahnte Bereich B des Schaftes über seinen Kopfkreis mit zur zentrierten Führung herangezogen wird. Dadurch braucht der Bereich A

Figure imgb0001
der Bohrung 3 nur auf das Maß der Führungslänge z ausgelegt zu werden. Damit kann auch der Bereich A des Schaftes 2 entsprechend kurz sein.The abovementioned shortening of the overall length is achieved in that the toothed region B of the shaft is also drawn over its tip circle for centered guidance. This means that area A
Figure imgb0001
the bore 3 to be designed only for the dimension of the guide length z. The area A of the shaft 2 can thus also be correspondingly short.

Claims (1)

Wellen-Befestigung in einer Bohrung eines Aufnahmeteiles, bei der die Welle über einen an ihr gezahnten, insbesondere gerändelten Bereich B, in einen Bereich B
Figure imgb0001
der Bohrung formschlüssig eingeschnitten ist und bei der an der Welle in Fügerichtung vor dem gezahnten Bereich B ein paßgenau in einen Bereich C
Figure imgb0001
der Bohrung eingreifender Paßabschnitt C vorhanden ist, wobei die buchstabengleichen Bereiche B, B' bzw. C, C
Figure imgb0001
der Welle und Bohrung bei in der Bohrung befestigter Welle aufeinanderliegen,
gekennzeichnet durch die Merkmale: a. die Bohrung (3) ist in drei axial aneinandergrenzende Bereiche A
Figure imgb0001
,B
Figure imgb0001
,C
Figure imgb0001
mit gegeneinander kleiner werdenden Durchmessern aufgeteilt, beginnend mit dem Bereich A
Figure imgb0001
mit größtem Durchmesser, in den die Welle (Schaft 2) mit ihrem Bereich C zuerst eingeführt wird, b. die Welle (Schaft 2) besitzt ebenfalls drei axial aneinandergrenzende Bereiche A,B,C, die in befestigtem Zustand den buchstabengleichen Bereichen der Bohrung (3) zugeordnet sind, c. der Durchmesser des Bereiches C der Welle (Schaft 2) ist kleiner als die Außen-Durchmesser der beiden anderen Bereiche A,B, d. der Außen-Durchmesser des Wellen-Bereiches B ist kleiner oder gleich dem Durchmesser des Bohrungs-Bereiches A
Figure imgb0001
, e. die Wellenbereiche A und C liegen paßgenau in den zugehörigen Bohrungsbereichen A' und C' an. Shaft fastening in a bore of a receiving part, in which the shaft extends into an area B via a toothed, in particular knurled area B
Figure imgb0001
the hole is cut in a form-fitting manner and in the case of the shaft in the joining direction in front of the toothed area B a precise fit in an area C.
Figure imgb0001
the bore engaging fitting section C is present, with the same-letter areas B, B 'and C, C
Figure imgb0001
the shaft and the bore lie on top of each other with the shaft fastened in the bore,
characterized by the characteristics: a. the bore (3) is in three axially adjacent areas A.
Figure imgb0001
, B
Figure imgb0001
, C
Figure imgb0001
with diameters becoming smaller towards each other, starting with area A
Figure imgb0001
with the largest diameter into which the shaft (shaft 2) with its area C is first inserted, b. the shaft (shaft 2) also has three axially adjoining regions A, B, C which, when fastened, are assigned to the regions of the bore (3) with the same letters, c. the diameter of the area C of the shaft (shaft 2) is smaller than the outside diameter of the other two areas A, B, d. the outer diameter of the shaft area B is less than or equal to the diameter of the bore area A
Figure imgb0001
, e. the shaft areas A and C are in exact fit in the associated bore areas A 'and C'.
EP94115077A 1993-12-31 1994-09-24 Shaft mounting Expired - Lifetime EP0661474B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4345099 1993-12-31
DE4345099A DE4345099A1 (en) 1993-12-31 1993-12-31 Shaft attachment

Publications (2)

Publication Number Publication Date
EP0661474A1 true EP0661474A1 (en) 1995-07-05
EP0661474B1 EP0661474B1 (en) 1997-11-19

Family

ID=6506594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94115077A Expired - Lifetime EP0661474B1 (en) 1993-12-31 1994-09-24 Shaft mounting

Country Status (3)

Country Link
EP (1) EP0661474B1 (en)
AT (1) ATE160434T1 (en)
DE (2) DE4345099A1 (en)

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WO1996035885A1 (en) * 1995-05-11 1996-11-14 Alpha Getriebebau Gmbh Shaft fixture
WO1997001714A1 (en) * 1995-06-29 1997-01-16 Zf Friedrichshafen Ag Interlocking shaft-hub connection
EP0852982A1 (en) * 1997-01-09 1998-07-15 Zexel Corporation Method for rotationally driving gear material when hob machining is performed, and gear
EP1245849A2 (en) * 2001-03-16 2002-10-02 Schenck RoTec GmbH Self-aligning splined male shaft head and engagement method
FR2824887A1 (en) * 2001-05-16 2002-11-22 P S M Fixation Method for immobilizing differential satellite spindle comprises making knurling of spindle end to ensure adjustment of end in casing opening
EP1281884A2 (en) * 2001-07-30 2003-02-05 SEW-EURODRIVE GMBH &amp; CO. Series of shafts and manufacturing method therefore
EP1281883A2 (en) * 2001-07-30 2003-02-05 SEW-EURODRIVE GMBH &amp; CO. Series of shafts and manufacturing method therefore
WO2003100278A1 (en) * 2002-05-24 2003-12-04 Sew-Eurodrive Gmbh & Co Series of shafts and method for manufacturing the same
WO2004025131A1 (en) * 2002-08-28 2004-03-25 Zf Friedrichshafen Ag Shaft-hub connection
WO2006048343A1 (en) * 2004-11-08 2006-05-11 Robert Bosch Gmbh Hand-held machine tool, particularly drill or nut runner
WO2010060551A1 (en) * 2008-11-25 2010-06-03 Lucas Automotive Gmbh Disk brake assembly
WO2012139829A1 (en) * 2011-04-11 2012-10-18 Schaeffler Technologies AG & Co. KG Joined connection for components by means of a locating fit
CN104271991A (en) * 2012-04-17 2015-01-07 西门子公司 Geared motor series
US20150323014A1 (en) * 2014-05-08 2015-11-12 Steering Solutions Ip Holding Corporation Spline press fit orientation lead in
WO2017211728A1 (en) * 2016-06-09 2017-12-14 Gomecsys B.V. System for varying the compression ratio of a combustion engine equipped with transfer shafts
WO2019002402A1 (en) * 2017-06-28 2019-01-03 Valeo Equipements Electriques Moteur Motor vehicle rotary electric machine drive assembly
WO2020015853A1 (en) * 2018-07-17 2020-01-23 Sew-Eurodrive Gmbh & Co. Kg Shaft-hub connection and method for producing a shaft-hub connection
WO2020108794A1 (en) * 2018-11-28 2020-06-04 Sew-Eurodrive Gmbh & Co. Kg Planetary gearbox with a sun gear and a shaft part

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DE10302072B3 (en) * 2002-12-20 2004-09-09 Sew-Eurodrive Gmbh & Co Kg Shaft for fixing in a bore of a receiving part interlocks with the bore of the receiving part
DE10342497A1 (en) * 2003-09-12 2005-04-21 Shaft Form Engineering Gmbh Connection system for a shaft to a joint
DE202005000430U1 (en) * 2005-01-13 2006-05-24 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Attachment of drive element for adjusting seat in motor vehicle has drive element with opening for admission of second drive element whereby one of the surfaces of expandable section results in deformation
DE102005059018B4 (en) * 2005-12-08 2008-06-12 Sew-Eurodrive Gmbh & Co. Kg Electric motor and connection between a rotor shaft and a rotor core
DE102007000659A1 (en) * 2007-11-08 2009-05-14 Zf Friedrichshafen Ag Form-fit joint e.g. spline profile, for transferring torque from e.g. toothed wheel, to e.g. shaft, connects components, where set guidance surfaces of one of components cooperate with another set of surfaces of other component
DE102008045143B4 (en) 2008-09-01 2012-05-24 Thyssenkrupp Presta Ag Adjustable steering column for a motor vehicle
DE102010000504B3 (en) * 2010-02-22 2011-03-03 Thyssenkrupp Presta Ag Adjustable steering column for motor vehicle, has actuating lever pressed with joining surface surrounding longitudinal axis and made of plastic, where teeth of tooth system in joining surface of actuating lever are partially carved
DE102012112890B3 (en) 2012-12-21 2014-01-09 Thyssenkrupp Presta Aktiengesellschaft Steering column for a motor vehicle
DE202014103461U1 (en) * 2014-07-28 2015-10-29 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Device for form-fitting joining a sleeve made of a hard metal and an inner ring made of a soft metal

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WO1996035885A1 (en) * 1995-05-11 1996-11-14 Alpha Getriebebau Gmbh Shaft fixture
WO1997001714A1 (en) * 1995-06-29 1997-01-16 Zf Friedrichshafen Ag Interlocking shaft-hub connection
EP0852982A1 (en) * 1997-01-09 1998-07-15 Zexel Corporation Method for rotationally driving gear material when hob machining is performed, and gear
EP1245849A2 (en) * 2001-03-16 2002-10-02 Schenck RoTec GmbH Self-aligning splined male shaft head and engagement method
EP1245849A3 (en) * 2001-03-16 2004-03-17 Schenck RoTec GmbH Self-aligning splined male shaft head and engagement method
FR2824887A1 (en) * 2001-05-16 2002-11-22 P S M Fixation Method for immobilizing differential satellite spindle comprises making knurling of spindle end to ensure adjustment of end in casing opening
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WO2004025131A1 (en) * 2002-08-28 2004-03-25 Zf Friedrichshafen Ag Shaft-hub connection
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WO2010060551A1 (en) * 2008-11-25 2010-06-03 Lucas Automotive Gmbh Disk brake assembly
WO2012139829A1 (en) * 2011-04-11 2012-10-18 Schaeffler Technologies AG & Co. KG Joined connection for components by means of a locating fit
CN104271991A (en) * 2012-04-17 2015-01-07 西门子公司 Geared motor series
CN104271991B (en) * 2012-04-17 2016-08-31 西门子公司 Adjustable engine structural series
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CN110869630B (en) * 2017-06-28 2023-01-10 法雷奥电机设备公司 Motor vehicle rotating electric machine drive assembly
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WO2020108794A1 (en) * 2018-11-28 2020-06-04 Sew-Eurodrive Gmbh & Co. Kg Planetary gearbox with a sun gear and a shaft part

Also Published As

Publication number Publication date
EP0661474B1 (en) 1997-11-19
DE59404632D1 (en) 1998-01-02
ATE160434T1 (en) 1997-12-15
DE4345099A1 (en) 1995-07-06

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